Chassis truck



Jan. W, 1956 H. F. STRESAU, JR

CHASSIS TRUCK 2 Sheets-Sheet 1 Filed July 11, 1952 R m m m V m ATTORNEYfi R. H. F. STRESAU,

2,730,257 Patented Jan. 10, 1956 CHASSIS TRUCK Richard H. F. Stresau, In, Washington Grove, Md., assignor to the United States of America as represented by the Secretary of the Navy Application July 11, 1952, Serial No. 298,480 3 Claims. (Cl. 214-450) (Granted under Title 35, U. S. Code (1952), sec. 266) The invention described herein may be manufactured and used by or for the Government of the United States of America for governmental purposes without the payment of any royalties thereon or therefor.

The present invention relates to a new and improved truck for handling and transporting heavy articles and more particularly to a device for removing and installing an electronic chassis from and into a conventional relay rack whereby such chassis may be expeditiously moved with a minimum of physical effort.

An object of the invention is to provide a device of the aforementioned character which embodies new and improved means for supporting and retaining the object to be moved.

Another object of the invention is to obviate the difiiculties encountered, when installing and removing an electronic chassis into and from a relay rack, by providing a holder or supporting device onto which the chassis may be readily clamped and wheeled to the desired location.

Another object is to provide a device in which the base is provided with caster-wheels to adapt the machine to be moved to and from a relay rack, and in which means are provided for locking the adjustable frame or supporting member in the adjusted position.

Still another object of the invention is to provide a new and improved truck which is reliable in operation, economical to manufacture and which possesses all the characteristics of durability.

Other objects and many of the attendant advantages of this invention will be readily appreciated as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings wherein:

Fig. 1 is a side elevation of the device of the present invention illustrating the manner of supporting an elec' tronic chassis to facilitate the removal thereof from a relay rack, the rack being partially in elevation and partially in section;

Fig. 2 is a sectional view taken on the line 2-2 of I Fig. 1;

Fig. 3 is a sectional view taken on the line 33 of Fig. 2;

Fig. 4 is a sectional view taken on the line 4-4 of Fig. l; and v Fig. 5 is an enlarged fragmentary sectional view of one of the bumper devices employed with the present invention.

Referring now to the drawings and more particularly to Fig. 1 thereof, the numeral generally indicates a conventional relay rack comprising a substantially rectangular frame 11 having supported therein a number of electronic devices 12. Each electronic device comprises a chassis 13 having secured thereto a control panel 14 upon which is mounted the usual control knobs and indicating dials employed therewith for controlling the numerous electrical circuits therein. Each of the aforesaid electronic devices are secured within the rack in the conventional manner such, for example, as by suitable brackets 15 and bolts 16, the panels 14 thereof extending beyond the outer surface of the frame 11 and are pro vided with a pair of mutually spaced openings 17 respectively at the upper end thereof.

The device of the present invention for installing and removing the aforesaid electronic devices into and from the frame 11 is generally indicated by the reference character 18 and comprises a base 19 having a casterwheel 21 disposed at each corner the device to be moved along a surface such,

vice therefrom.

As more clearly shown on Figs. 2 and 4 a pair of channel members 22 relation with respect to each other by a pair of brackets 23 respectively, the brackets being secured to the base 19 and the channels 22 as at 24. The channels are condisposed on opposite sides thereof and to the base 19 as at 27.

A carriage generally indicated by the reference character 28 is movably arrangedv between the channels memand comprises a pair of mutually spaced vertical arms 29 having a pair of shafts 31 supported thereby in spaced relation with respect to each other. A pair of rollers 32 are rotatably supported at the extremity of each shaft respectively, the rollers being disposed within the channels 22 in engagement with the flanged portions 33 thereof. As more clearly shown on Fig. 4 a pair of mutually spaced supports 34 are integrally formed on the arms 29 and extend outwardly therefrom at a right angle Each support 34 is provided with an upturned ear or lug 35 having an aperture 36 therein and extending therethrough in registration with the openings 17 formed in the panel 14. By this arrangement the supports 34 are detachably secured to the panel 14 as by bolts or screws 37 and thus the chassis is supported by the carriage whereupon the chassis may be readily removed from the rack or installed therein.

A pair of members 38 are integrally formed on the arms 29 and extend outwardly therefrom, the member being disposed in spaced relation with respect to each 38 is provided with a bumper 39 composed of any material suitable for the purpose such, for example, as rubber, adapted to engage the panel 14 when the device is in an operative position with the sup ports attached to the panel by bolts 37. As shown more clearly on Fig. 5 the bumpers 39 are disposed within caps 41, the caps being secured to the members 38 as by bolts 42.

As more clearly shown on Figs. 1 and 3 the carriage 28 is provided with suitable braces 43, 44, 45 and 46. Braces 43 and 44 are secured to each of the arms 29, braces 45 are secured to each of the supports 34 and to each of arms 29 respectively and braces 46 are secured to each member 34 and 38 and each arms 29 respectively and thus by this arrangement the carriage is sufficiently strong to support a relatively heavy load.

Disposed subjacent the member 25 and journaled in parting rotative movement thereto and to the drum.

As more clearly shown on Fig. l a ratchet 54 is seare supported on the base 19 in spaced chred'to andi'otatablewith the shaft 47. A detent 55 is pivotally' mounted on one-of the channels 2211s at 56 and normally maintained in-locking engagement with the ratchet 54 by a spring 57. When the drum has been rorated a predetermined amount n the-aforesaid 'manner. and the carriage 28 hasbeerirnovedto the'desired 'position in 'response'thereto-the*detent engages the ratchet and-"locks the drum against further rotatiomwh'ereupon the carriage may be readily attached to the chassis 113 by means of the-aforesaid bolts 37 and thus the chassis can be readily removedfrom the rack with a minimum amouut'of physical effort. Furthermore, by the' aforesaidarrangement'it will be understood-that the chassis may be supported and retained for installation into the rack or cabinet.

To equalize the load when a chassis is supported by the device, a weight 58 is provided, the weight being secured to the'base at the outermost end thereof Fig. 1, in any suitable manner preferably as by a pair of bolts 59. Each bolt 59 extends through a slot 61 formed in the base member 19 and has a nut 62threaded thereon. By this arrangement the weight may be adjusted along the base, if desired.

From the foregoingit will'be apparent that a new and improved truck and lift has been devised for handling and transporting'an electronic chassis to and-from a rack or cabinet and in which means are provided for supporting and retaining the electronic chassis, whereby the chassis may be wheeled to the desired location.

Obviously many modifications and variations of the present invention are'possible in the light of the above teachings. It is therefore to be understood that within the scope of the-appended claims the invention may be practiced otherwise than as specifically described.

What is claimed as new and desired to be secured by Letters Patent is:

l. A device of the character disclosed comprising a wheeled base a pair of supports secured to said base in spaced relation with respect to each other, a carriage mounted for vertical sliding movement between said supports, roller means on' said carriage, guide means on said supports in engagement with said roller means for guiding said carriage along said supports, a shaft rotatably mounted on said supports, means including a cable operatively connected to said shaft and carriage for causing said sliding movement of said carriage as said shaft is rotated, means secured to said shaft for rotating the shaft, a pair of mutually spaced arms on said carriage, lug means including a threaded element on each of said arms for securing and supporting an electronic chassis thereon a mass adjustably secured on said base for equalizing the load thereon when said chassis is secured'to said carriage, a second pair of mutually spaced arms on said carriage,- andv means on each of said'second arms for absorbing the force of impact as said lugs engage said chassis.

2. A device of the'ch'aracter disclosed comprising a wheeled base, a pair of supports secured to said base in spaced relation with respect to each other, a carriage mounted for vertical sliding movement between said supports, roller means on said'carriage, guide means on said supports in engagement with said roller means for guiding said carriage along said supports as the carriage is tronic chassis vcomprising,

moved slidably therebetween, a shaft rotatably mounted on sai'ct'supports,a'drum'supported on said shaftya cable on said drum having one end thereof secured to said carriage for moving said carriage as said shaft and drum are rotated, crank means secured to said shaft for rotating said shaft and drum, meansincluding a ratchet secured to said shaft for locking the shaft when the carriage has been moved a predetermined'amount, a pair of mutually spaced arms on said carriage; lug means including a threaded element on each of saidarms for securing and supporting an electronic chassis whereby the chassis may be moved from and or installed within a supporting rack, a mass adiustably secured'on saidbase for equalizing the load thereon when said chassis is secured-to said carriage, a second pair of mutually spaced arms on said carriage, and rh'eans oneach ofsaid second arms for absorbing the force of impact as said lugs engage said electronic chassis. 3. In a device for transporting and supporting an elecin combination a supporting rack for said chassis, a panel secured to said chassis and having a pair of mutually'spaced openings formed'therein, a wheeled base, a pair of supports secured to said base in spaced relation with respectto each other, a carriage, mounted for vert cal sliding movement between said supports, roller 'means on said carriage, guide means on said support in engagement with said roller means for guiding said carriage along said supports, a pair of arms formed on saidcarriage, a' lug formed on each of said arms, said lugs having a pair of apertures formed theresaid lugs tosaid'panel i and apertures are in registration,

in respectively for registration with said openings when said device'is wheeled sufficiently tocause engagement of said lug with the panel and said carriage is moved slidably a predetermined amount, means for securing when said lugs are in engagement therewith and said openings and apertures are in registration whereby the chassis may be removed from said rack as the'base is wheeled in a direction away therefrom, means on said carriage for absorbing the force of impact as said lugs engage the'panel, a shaft rotatably mounted on said support, means including a cable operatively connected to said shaft and carriage for slidablymovi'ng said'carriage as the shaft is rotated, means for locking said shaft against rotation when said opening amass adjustably secured on'saidflbase for equalizing the load thereon when said chassis is secured to said'lugs', and means including a pair of bolts for adjustably securing said mass on the base.

References'Cited in the file ofthis patent UNITED STATESPATENT S 708,625 Danielsen-.. Sept. 9,-1902 1,208,117 Frost Dec. 12, 1916 1,306,431 -Klemme June 10, 1919 1,799,307 Manley Apr. -7,' 1931 2,175,041 7 Thumin Oct. 351939 2,314,792 Korner Mar. 23,1943 2,319,456 Hazen May 18, 1943 2,415,015 Lulle Jan. 28, 1947 2,447,300 Williams Aug. 17, 1948 2,582,663 Weiss Jan. 15, 1952 2,620,937 Halloran Dec. 9, 1952 

